Abstract:
This is the OMI/Aura Cloud Pressure and Fraction (Raman Scattering) subset along CloudSat tracks, for the purposes of the A-Train mission. The original data product uses the Rotational Raman Scattering method. This level-2 global cloud product provides effective cloud pressure and effective cloud fraction that is based on the least square fitting of the Ring spectrum (filling-in of Fraunhofer ... lines in the range 392 to 398 nm due to rotational Raman scattering). The goal of this subset is to select and return OMI data that are within +-100 km across the CloudSat track. I.e. the resultant OMI subset swath is sought to be about 200 km cross-track. This product also contains many ancillary and derived parameters, terrain and geolocation information, solar and satellite viewing angles, and quality flags. Even though collocated with CloudSat, this subset can serve many other A-Train applications. (The shortname for this Level-2 OMI cloud pressure and fraction subset along CloudSat tracks product is OMCLDRR_CPR)

Quality
Please see the detailed Quality assessment document provided by Algorithm Lead. Though overall quality of Cloud parameters are satisfactory, users are strongly advised to consult the OMI Quality Assurance Team for most recent information on our ongoing assessment of OMCLDRR data quality.

Use Constraints
Before using this product in any publication please contact algorithm team lead Dr. Joanna Joiner (Joanna.Joiner@nasa.gov)for the current known problems and updates.